can gulp
Regular verb: gulp - gulped- gulped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can gulp
you can gulp
she can gulp
we can gulp
you can gulp
they can gulp 	I can be gulping
you can be gulping
she can be gulping
we can be gulping
you can be gulping
they can be gulping	I can have gulped
you can have gulped
she can have gulped
we can have gulped
you can have gulped
they can have gulped	I can have been gulping
you can have been gulping
she can have been gulping
we can have been gulping
you can have been gulping
they can have been gulping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't gulp
you can't gulp
she can't gulp
we can't gulp
you can't gulp
they can't gulp 	I can't be gulping
you can't be gulping
she can't be gulping
we can't be gulping
you can't be gulping
they can't be gulping	I can't have gulped
you can't have gulped
she can't have gulped
we can't have gulped
you can't have gulped
they can't have gulped	I can't have been gulping
you can't have been gulping
she can't have been gulping
we can't have been gulping
you can't have been gulping
they can't have been gulping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I gulp?
can you gulp?
can she gulp?
can we gulp?
can you gulp?
can they gulp? 	can I be gulping?
can you be gulping?
can she be gulping?
can we be gulping?
can you be gulping?
can they be gulping? 	can I have gulped?
can you have gulped?
can she have gulped?
can we have gulped?
can you have gulped?
can they have gulped? 	can I have been gulping?
can you have been gulping?
can she have been gulping?
can we have been gulping?
can you have been gulping?
can they have been gulping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I gulp?
can't you gulp?
can't she gulp?
can't we gulp?
can't you gulp?
can't they gulp? 	can't I be gulping?
can't you be gulping?
can't she be gulping?
can't we be gulping?
can't you be gulping?
can't they be gulping? 	can't I have gulped?
can't you have gulped?
can't she have gulped?
can't we have gulped?
can't you have gulped?
can't they have gulped? 	can't I have been gulping?
can't you have been gulping?
can't she have been gulping?
can't we have been gulping?
can't you have been gulping?
can't they have been gulping?